From: Christoph Hellwig <hch@lst.de>
To: Jia He <justin.he@arm.com>
Cc: Christoph Hellwig <hch@lst.de>,
Marek Szyprowski <m.szyprowski@samsung.com>,
Robin Murphy <robin.murphy@arm.com>,
iommu@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] dma-mapping: fix dma_addressing_limited if dma_range_map can't cover all system RAM
Date: Tue, 10 Oct 2023 09:48:16 +0200 [thread overview]
Message-ID: <20231010074816.GA9082@lst.de> (raw)
In-Reply-To: <20231010020835.3678-1-justin.he@arm.com>
dma_addressing_limited is called for every dma (direct) map, and this
new code is way to heavy for that. We'll need to cache the information
somehow.
next prev parent reply other threads:[~2023-10-10 7:48 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-10 2:08 [PATCH v2] dma-mapping: fix dma_addressing_limited if dma_range_map can't cover all system RAM Jia He
2023-10-10 7:48 ` Christoph Hellwig [this message]
2023-10-10 8:42 ` Justin He
2023-10-10 9:40 ` Robin Murphy
2023-10-11 5:11 ` Christoph Hellwig
2023-10-16 2:59 ` Justin He
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